In the town of Silverton, Oklahoma, the local high school senior class prepares for graduation. The high school's vice-principal, Gary Fuller, has asked his two sons, Trey and Donnie, to record messages from the seniors for a time capsule to be opened in 25 years. Elsewhere, Pete, a veteran storm chaser, has been attempting to intercept and film tornadoes using a Tornado Intercept Vehicle nicknamed Titus, but has come up short all year long. Upon learning of a major line of developing storms, the chasers decide to head for Silverton in hopes of filming tornadoes. After arriving in Silverton, the team discovers that the cell they had been chasing has dissipated, but the Silverton cell abruptly strengthens, resulting in a hailstorm and tornado. As the team films, the funnel shifts course and heads for the high school. You were visiting Silverton for your vacation, not expecting the extreme weather and abruptly change. You ran and took shelter in the Highschool and now you must brave through the storm of twisters and super cells. Good luck.